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Prevent core dumps from invalid maxpairs

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This commit is contained in:
Jonathan "Duke" Leto
2018-04-12 14:24:21 -07:00
parent cf54fc3881
commit f2173f8cf9
1 changed files with 10 additions and 5 deletions
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15
src/komodo_ccdata.h
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@@ -85,11 +85,16 @@ struct komodo_ccdata_entry *komodo_allMoMs(int32_t *nump,uint256 *MoMoMp,int32_t
int32_t komodo_addpair(struct komodo_ccdataMoMoM *mdata,int32_t notarized_height,int32_t offset,int32_t maxpairs) int32_t komodo_addpair(struct komodo_ccdataMoMoM *mdata,int32_t notarized_height,int32_t offset,int32_t maxpairs)
{ {
if ( mdata->numpairs >= maxpairs ) if ( maxpairs >= 0) {
{ if ( mdata->numpairs >= maxpairs )
maxpairs += 100; {
mdata->pairs = (struct komodo_ccdatapair *)realloc(mdata->pairs,sizeof(*mdata->pairs)*maxpairs); maxpairs += 100;
//fprintf(stderr,"pairs reallocated to %p num.%d\n",mdata->pairs,mdata->numpairs); mdata->pairs = (struct komodo_ccdatapair *)realloc(mdata->pairs,sizeof(*mdata->pairs)*maxpairs);
//fprintf(stderr,"pairs reallocated to %p num.%d\n",mdata->pairs,mdata->numpairs);
}
} else {
fprintf(stderr,"komodo_addpair.maxpairs %d must be >= 0\n",maxpairs,(int32_t)maxpairs);
return(-1);
} }
mdata->pairs[mdata->numpairs].notarized_height = notarized_height; mdata->pairs[mdata->numpairs].notarized_height = notarized_height;
mdata->pairs[mdata->numpairs].MoMoMoffset = offset; mdata->pairs[mdata->numpairs].MoMoMoffset = offset;